Although most boutiques and national chains sell up to a size 26, the largest sample many keep in the store is a size 10. If you don't want to find yourself holding one in front of you and imagining how it would look on, call ahead to your local salon to make sure it has plus-size samples in the style and designer you like or, if not, whether it can get some in before your appointment.

Many labels just expand the measurements of small gowns to size them up, but since real bodies don't work that way, the fit can be way off. Fortunately, more top designers, from Pnina Tornai to David's Bridal, now offer plus-size styles cut with your body in mind. Ask your salon's salesperson about them.

You can add figure-flattering details to most gowns.

A waist-cinching bustier creates an hourglass shape; ruching — especially diagonal ruching is shape-smoothing magic; and modesty panels can eliminate cleavage without sacrificing one iota of chic. Most gowns can be altered to include these elements for $50 to $100 each.

Want more genius planning tips? For the best wedding dresses, advice, and big-day inspiration, pick up the BRIDES June/July 2015 issue, on newsstands now and available for download here!